TM 10-8145-222-23
MAINTAINER MAINTENANCE
EVAPORATOR THERMOSTATIC EXPANSION VALVE
REPLACE
INITIAL SETUP:
Tools and Special Tools
Personnel Required
Face Shield (WP 0097, Item 20)
Utilities Equipment Repairer
Gloves, Rubber (WP 0097, Item 21)
References
Refrigeration Equipment
Tool Kit (supplement) (WP 0096, Table 2, Item 7)
TM 10-8415-222-10
Service Refrigeration Ordnance
Tool Kit (WP 0096, Table 2, Item 6)
TM 10-8145-222-23P
Materials/Parts
Equipment Condition
Alcohol, Isopropyl (WP 0097, Item 2)
MTRCS operating with refrigeration unit on (TM 10-
Insulation Tape (WP 0097, Item 26)
8415-222-10)
REPLACE
Perform the following steps to replace either evaporator TXV.
WARNING
Dry nitrogen cylinders are under high pressure. Never use dry nitrogen cylinders
without using a pressure regulator. Always maintain a constant awareness of the
condition of pressurized systems. Never use oxygen in or around refrigerant systems
as an explosion could result. Failure to comply with this warning can result in serious
injury or death to personnel.
1. Pump refrigeration unit down (WP 0014, Service).
2. Open MTRCS control panel assembly door (Figure 1, Item 1).
3. On control box, place COMPARTMENT 1 ON/OFF rocker switch (Figure 1, Item 2) to OFF position.
4. Place COMPARTMENT 2 ON/OFF rocker switch (Figure 1, Item 3) to OFF position.
5. Place POWER ON/DOWN switch (Figure 1, Item 4) on control panel to DOWN position.
6. Close MTRCS control panel assembly door (Figure 1, Item 1) and latch.
0081-1